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arXiv 1803.03331cs.AR
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基于FPGA的自适应动态系统的有效可重构区域管理方法

Efficient reconfigurable regions management method for adaptive and dynamic FPGA based systems

Marwa Hannachi, Abdesslam B. Abdelali, Hassan Rabah, Abdellatif Mtibaa

摘要:

基于现场可编程门阵列(FPGA)结构的自适应系统可以从动态部分重构(DPR)提供的高度灵活性中受益。通过使用这种技术,硬件任务可以根据系统要求按需加载和重新加载。在本文中,我们建议使用动态和自适应实现的视频剪切检测应用程序的基础上,MPEG-7的颜色结构描述符(CSD)的DPR。在拟议的实施方案中,对不同的情景进行了测试。根据应用和系统要求,CSD模块可以在任何时间以可变的模块大小(对应于CSD的不同版本)被加载,并且被分配在不同的可能的可重配置区域中。这样的实施需要许多问题,有关的通信,搬迁和可重构的区域管理。我们将演示如何通过使用适当的设计方法成功实现此功能。该方法的提出是为了支持基于DPR FPGA的自适应系统中可变大小硬件任务的管理。它允许有效地处理可重构区域,并重新定位在不同的可能区域中的可重构模块。所考虑的应用程序的实施结果显示了重要的优化配置时间(直到66%)和内存存储(直到87%)和有效的硬件资源利用率(直到90%)。

英文摘要:

Adaptive systems based on field programmable gate array (FPGA) architectures can greatly benefi t fro m th e high degree of flexibility offered by dynamic partial reconfiguration (DPR). By using this technique, hardware tasks can be loaded and reloaded on demand depending on the system requirements. In this paper, we propose to use the DPR for dynamic and adaptive implementation of a video cut detection application based on the MPEG-7 color structure descriptor (CSD). In the proposed implementation, different scenarios have been tested. Depending on the application and the system requirements, the CSD module can be loaded at any time with variable module size (corresponding to different version of the CSD) and allocated in different possible reconfigurable regions. Such implementation entails many problems related to communication, relocation and reconfigurable region management. We will demonstrate how we have made this implementation successful through the use of an appropriate design method. This method was proposed to support the management of variable-size hardware tasks on DPR FPGAs based adaptive systems. It permits to efficiently handle the reconfigurable area and to relocate the reconfigurable modules in different possible regions. The implementation results for the considered application show an important optimization in terms of configuration time (until 66 %) and memory storage (until 87 %) and an efficient hardware resources utilization rate (until 90%).

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